Lake Hartwell Level Restrictions to Continue as Army Corps Addresses Dam Safety Concerns

If you’ve been wondering why Lake Hartwell may stay lower than the summertime levels many residents and visitors are used to seeing, the answer goes beyond the ongoing drought.

 

The U.S. Army Corps of Engineers has announced that water-level restrictions at Lake Hartwell will remain in place for the foreseeable future because of concerns involving the Clemson Lower Diversion Dam Saddle Dike near Clemson University. The restrictions are designed to reduce pressure on the structure while engineers develop a permanent solution.

 

According to WYFF News 4's report on the Lake Hartwell restrictions, the issue involves seepage at the saddle dike—an earthen structure that helps protect low-lying areas around Clemson University from flooding.

 

So, What Exactly Is Happening?

The Army Corps says water has been seeping through and underneath portions of the Clemson Saddle Dike. Over time, that movement can carry away fine soil particles and weaken the structure.

This isn't something that suddenly appeared. The Corps says seepage at the site was discovered in 2015 and has been monitored since then. More recent evaluations, including observations following major storms such as Hurricane Helene, showed that the deterioration is worsening and requires additional precautions.

 

The important part for residents to know: officials say there is no immediate danger to the public. The restrictions are preventative measures intended to reduce risk while a permanent fix is studied, designed and eventually constructed.

 

What Does This Mean for Lake Hartwell's Water Level?

Under the temporary restrictions, the normal operating target—or "guide curve"—will be kept at 656 feet above mean sea level year-round. Historically, Lake Hartwell's target has varied seasonally and reached about 660 feet during the summer.

 

The Corps also intends to keep the lake from exceeding 662 feet. If heavy rainfall pushes the lake above the 656-foot target, officials will use dam operations to bring it back down as conditions safely allow.

Right now, drought conditions have already pushed Lake Hartwell below the new restriction level, so residents shouldn't expect to see a sudden drawdown specifically because of this announcement. The bigger difference will become noticeable once wetter conditions return: instead of rising back toward the traditional summer full-pool level, the lake will generally be managed around the lower 656-foot target.

 

Boaters and Lakefront Property Owners Could Notice the Difference

A lower Lake Hartwell could mean more than a different-looking shoreline.

The Corps says shallow-water docks may experience dry conditions more frequently, some shallow boat ramps could become unusable, and designated swimming beaches generally become unusable below 657 feet.

Boaters should also be especially careful. Lower water can expose—or bring vessels closer to—rocks, trees, sandbars and other hazards that normally sit safely beneath the surface.

 

How Long Could the Restrictions Last?

This won't necessarily be a short-term situation.

The Army Corps plans to conduct a Dam Safety Modification Study to determine the best permanent engineering solution. The study itself can take up to two years, and the subsequent process of design, federal funding approval and construction could take considerably longer. The Corps' current information says the overall process could take five to 10 years or more.

In the meantime, officials will continue monitoring the Clemson Saddle Dike and reevaluating the safety measures annually.

 

For Anderson-area residents who spend their summers boating, fishing or relaxing along Lake Hartwell, that means the lower target level may become the new normal for quite some time.

 

The good news is that Lake Hartwell remains open for recreation, and officials stress that the current action is about preventing a future emergency—not responding to an immediate one.

 

👉 Read WYFF News 4's original report and follow updates on the Lake Hartwell restrictions